Improvement in rakes for harvesters



j best manner.

UNITED STATES PATENT OEEICE.

NVM.` H. SEYMOUR AND AARON PALMER, OF BROCKPORT,NEW vYORK.-

lMPROVEMENT IN RAKES FOR HARVESTERS..

Specification forming part of Letters Patent No. 34,986, dated April 15,1862.

ence being had to the accompanying drawings,

which make part of this specification, and in which@ l Figure 1represents a view 1n perspectivel of a portion of a harvesting-machinewith our improvements applied thereto, the black lines indicatingthe-relative position of the several parts when the rake is movingforward and on the point' of descending upon the grain lyingonthevplatform, the Ablue lines the atti- 'itude assumed when the rakehasdesoended `upon the platform preparatory to commencing its retrogrademovement, and the red lines the attitude assumed by the rake afterdischarging the gavel and just before the commencement of its forwardmovement.A Fig. 2

the rake-arm and tripping mechanism, the

`black lines representing the position of the cani and roller when therake rests upon the platform, and the red lines their position when therake is elevated.

Our invention relates to that class `of vibrating harvester-rakes inwhich the arm` carrying the rake is located directly behind the cuttingapparatus and vibrated by gearing placed at cneend of the same, so thatthe.

rake describes the are of a'circle the center of which is near the inneredge of the plat- -"for1n over which the rake traverses, and has for itsobj ect a new method of giving the proper motions to the rake in orderto facilitate the discharge of the grain from the platform in the rllheaccompanying drawings represent a conL venient arrangement of parts forcarrying out theobje'cts of our invention.

Upon the stubble side of the platform A a gearing-frame, QB, of anysuitable construction, is secured. A bevel-wheel, 0, upon thedriving-shaft c drives .a corresponding pinion, d, on the countershaftD, which carries a worm, cl. This worm drives a pinion, E, turning on avertical shaft, and carrying a'wrist-pin or crank, c, to which a pitman,F, is attached.

. represents avertical transverse section through K A vertical post, G,is mounted in suitable bearings in the gearing-frame B, so as to becapable ofturning freely on its axis. A rigid arm or lever, H, 4projectshorizontally from this turning post G, and vibrates freely-over theplatform and parallel to it. The vpitman F is jointed tothis arln, andgives motion toit.

A stationary cam, h, of the form shown in Fig. 2 of they drawings, issecured upon the outer end of the vibrating lever H. An arm, (shown inthe drawings as consisting of two parallel rods,) is secured upon thevibrating' arm at right angles thereto, so as to be'capable of revolvingfreely thereon. The rakel head J is attached, to and carried by theserods.

A- roller, z', is placed between the parallel rods .and has its bearingsin sockets or sleeves i', sliding upon the parallel rods I. The rolleris constantly pressed upon the stationary caml h bymeans of spiralsprings e2, encircling the Y parallel rods. These rods extend below thevibrating arm H, and are united and bent into the form shown in thedrawings, so as to form a tripping-lever, I', to raise and lower the v Astop, K,`is placedfupon the platform, to

trip the leveron its forward movement, and another one, L, is insertedinto the back of the gearing-frame, to elevate the rake-head at theproper moment.

rlhe operation of the machine is as follows:

We will assume the parts tooccupy the-posi- Y tion represented by theblack lines in Fig. 1 of the "drawings, and that their movements are 'inthe direction indicated by the red arrows.

with their heads to the rear. The ralre J moves forward until itstripping-leverll strikes upon the stopblock K. when. it is tiltedforward until the roller i has beenlifted out of its seat in thestationary cam h, when the rake falls by itsown weight, itsposition-being shown by the bluelines in Fig. 1. 4The lift- 'ing of theroller isfacilitated by the yielding As the stalks are severed by thecnt i ,ting apparatus they fall upon the platform A 2 y A .a4-.oso y z'upon the under surface of the stationary cam h. This retrograde movementis continued until the grain is discharged from the platform. Thetripping-lever. l then strikesthe stop-pin L and raises the rake, theparts occupying the position shown by the red lines in the drawings. Therake then commencesits forward movement again, until it strikes thedetent K, when it again descends upon the' platform, and the processabove described is repeated. As the rake rises at the termina tion ofits-backward stroke, the roller i rises over the point of the cam h andslips into its` seat in the cam, where it remains during the forwardmovement of the rake, being held in y to secure by Letters Patent, is

1. rlhe combination, in au automatic rake for ia harvesting-machine, ofthe following ele` ments, viz: first, a post or standard capable 1 ofturning freely in .its bearings; second, an arm secured rigidly to thepost and capable of traversing only in a plane perpendicular to it;third, a, stationary cam on said arm; fourth, a rake-head capable ofrevolving freely around said arm in a" plane perpendicular to it: fifth,

a roller carried by the arm to which the rakehead is attached, andcapable of yielding freely in its bearings to traverse over thestationary camand hold the rake-head in the proper position; sixth, atripping-lever upon the rod .which carries the rake-head; and, seventh,suitable' stops or ydetents upon the front and rear of the platformvtoraise and depress the rake at the proper moments, the whole operatingsubstantially in the manner described.

2. rlhe combination of the stationary cam 7a. upon the end of theVibrating arm, which carries the rake, with the yielding roller z' uponthe rake-rod, when operating substantially in the manner described, forthe purpose of holdingthe rake-head up during its forward movement andof pressing it down frmlyupon the grain when raking off.

3. The combination'of the stationary cam h, the yielding'roller i, andthe tripping-lever I', substantially in the manner and for the purposespecified.

4. The' combination of the yielding'roller i with the rake-rods I, asherein described, for the purpose set forth.

In testimony whereof we have 'hereunto subscribed our names.

' 'ILLIAM H. SEYMOUR.

AARON PALMER. Witnesses;

GEO. H. ALLEN, n WILLIAM STOUGHTON.

